Been there!
I feel the same way...I am not yet to the place where I don't kill anything...but I am much more involved in the planning, planting, etc. and love it. Something that I wished that I had done better...TAKE PICTURES/VIDEO. I have had my place for right at 20 years now...I wished that I had documented everything that I have done better...just for my own pleasure in reviewing it later.
Consider starting a digital scrapbook now, as a new property manager, I think you will enjoy looking back on it as the years go by.